欢迎来到天天文库
浏览记录
ID:34397065
大小:1.99 MB
页数:75页
时间:2019-03-05
《上海城区水体黑臭主要影响因子及治理案例比较研究》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、上海师范大学硕士学岱论文上海城区水体黑臭主要影响因子及治理案例比较研究摘要黑臭是水体有机污染的一种极端现象。本研究分析探讨了城市水体黑臭的主要影响因子与评价指标,黑臭水体治理工程的终结条件与技术经济结构(性价比),总结了黑臭水体治理方法与经验。综合文献资料和实验结果可知:黑臭的综合指标是有机污染指数A值。黑臭水体的』谊除与CODcr,BOD5,NH3-N,DO等指标的相关性明显外,与ORP,SF的相关性也明显;但当DO连续为0时,DO与其他水质指标的相关性无法显示。无明显黑臭的水体Chla.与CODcr,n
2、OD5,NH3.N,DO等指标相关性明显。介于黑臭和富营养化之间的水体以上指标间的相关性都明显。.水体黑臭的主要影响因子是SBORP、Chla.、CODcr,分别代表水体的水质指标、电化学指标、生物学指标、有机污染指标。sF和0RP对黑臭的权重高于A值,●在DO为零时仍可定量地表示黑臭程度。黑臭水体治理工程竣工的标志可为:水温大于20"C时,SF
3、价结果为:D0一>2mg/L:CODMn去除率多为30%~40%;CODcr去除率约55%;BOD5去除率为80%左右;NH3.N去除率基本可达60%以上;TP去除率为45%~85%;单位水量治理费用一般为65~75元/In3,最低30元/m3,平均约56.7元;/m3。关键词:上海;黑臭水体;影响因子;治理上海师范大学硕士学位论文上海城区水体黑臭主要影响园子及治理案倒比较研究AbstractBlackandfoulwaterisaresultfromtheseriousorganicpollution.I
4、nthisstudy,theprimaryinfluencingfactorsonblackandfoulwaterpollution,indexesofblackandfoulwaterqualityevaluation,conditionstoterminatethetreatmentengineersonblackandfoulwaterpollutionandtheevaluationoftechnicaleconomy(performance/priceratio)aboutblackandfou
5、lwatertreatmentwerediscussedandanalyzed,methodsand●experiencesofblackandfoulwatertreatmentweresummarized.Basedontheliteraturesandexperimentalresultsitcanbeknownthat:’ComprehensiveindexofBlackandFoulwasAvalue.AvaluewassignificantlycorrelatedwithCODer,BODs,N
6、H3一N,DO,alsowithORP,SF,etcinblackandfoulwater,butwhenDOvaluewasconsecutive0’correlationbetweenDOandotherwaterqualityindexesWasunabletobeknown.TherewassignifiC.髓tijOrrelationbetweentheminwaterwhichwasn’tblackandfoulenoughandwaterwhosewaterquautywasbetweenbl
7、ackandfoulpollutionandeutrophication.PrimaryinfluencingfactorsofblackandfoulwaterpollutionwereSF,ORP,Chla.,CODer,denotingindexesofwaterquality,electrochemistry,biologyandorganicpollutionrespectively.EigenvalueofSFandORPWashigherthanAvalueandSFandORPwereabl
8、etodenotethedegreesofblackandfoulwaterpollutionquantificationallywhenD0valueWas0.Ablackandfoulwaterpollutiontreatmentprojectcouldbecompleteundertheconditions:Waterqualityweredeterminedeveryweekwhenthewatertem
此文档下载收益归作者所有